Quark masses and decay constants in $N_f=2+1+1$ isoQCD with Wilson clover twisted mass fermions

We present a preliminary study of the pion, kaon and D-meson masses and decay constants in isosymmetric QCD, as well as a preliminary result for the light-quark renormalized mass. The analysis is based on the gauge ensembles produced by ETMC with $N_f=2+1+1$ flavours of Wilson-clover twisted mass quarks, spanning a range of lattice spacings from $sim0.10$ to $0.07$ fm and include configurations at the physical pion point on lattices with linear size up to $L~sim~5.6$~fm